Issue 37, 2015
From the journal:

Chemical Communications

Designing ligand-enhanced optical absorption of thiolated gold nanoclusters†

L. Sementa,a   G. Barcaro,a   A. Dass,b   M. Stener*cd  and  A. Fortunelli*a  

* Corresponding authors

a CNR-ICCOM & IPCF, Consiglio Nazionale delle Ricerche, via G. Moruzzi 1, Pisa, Italy
E-mail: alessandro.fortunelli@cnr.it

b Department of Chemistry and Biochemistry, University of Mississippi, Oxford (MS), USA

c Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, via L. Giorgieri 1, Trieste, Italy
E-mail: stener@univ.trieste.it

d Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, INSTM, Unitá di Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy

Abstract

The optical spectra of thiolated Au25(SR)18/Au23(SR)16 clusters with different R residues are investigated via TDDFT simulations. Significant enhancements in the optical region and effective electron delocalization are simultaneously achieved by tuning the ligands' steric hindrance and electronic conjugating features, producing a resonance phenomenon between the Au–S core motif and the ligand fragments.

Graphical abstract: Designing ligand-enhanced optical absorption of thiolated gold nanoclusters

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Article information

DOI
https://doi.org/10.1039/C5CC01951F
Article type
Communication
Submitted
08 Mar 2015
Accepted
30 Mar 2015
First published
30 Mar 2015

Chem. Commun., 2015,51, 7935-7938

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Designing ligand-enhanced optical absorption of thiolated gold nanoclusters

L. Sementa, G. Barcaro, A. Dass, M. Stener and A. Fortunelli, Chem. Commun., 2015, 51, 7935 DOI: 10.1039/C5CC01951F

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